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\begin{document}
La soluci\'{o}n de la ecuaci\'{o}n $10^{-3x}=4$ es:\medskip\newline\qquad a)
$x=-\dfrac{1}{3}\dfrac{\ln4}{\ln10}$\qquad b) $x=\dfrac{1}{3}\dfrac{\ln4}%
{\ln10}$\qquad c) $x=-\dfrac{1}{3}\dfrac{\ln10}{\ln4}$\qquad d) $x=\dfrac
{1}{3}\dfrac{\ln10}{\ln4}$

La soluci\'{o}n de la ecuaci\'{o}n $5^{-3x}=14$ es:\medskip\newline\qquad a)
$x=-\dfrac{1}{3}\dfrac{\ln14}{\ln5}$\qquad b) $x=\dfrac{1}{3}\dfrac{\ln14}%
{\ln5}$\qquad c) $x=-\dfrac{1}{5}\dfrac{\ln3}{\ln14}$\qquad d) $x=\dfrac
{1}{14}\dfrac{\ln3}{\ln5}$

La soluci\'{o}n de la ecuaci\'{o}n $2^{4x}=4$ es:\medskip\newline\qquad a)
$x=\dfrac{1}{4}\dfrac{\ln4}{\ln2}$\qquad b) $x=-\dfrac{1}{4}\dfrac{\ln4}{\ln
2}$\qquad c) $x=\dfrac{1}{2}\dfrac{\ln4}{\ln2}$\qquad d) $x=\dfrac{1}{4}%
\dfrac{\ln2}{\ln4}$

La soluci\'{o}n de la ecuaci\'{o}n $\log_{2}\left(  3x\right)  =4$
es:$\medskip$\newline$\qquad$a) $x=\dfrac{16}{3}\qquad$b) $x=2^{3}\qquad$c)
$x=\dfrac{1}{2}\qquad$d)$x=4$

La soluci\'{o}n de la ecuaci\'{o}n $\log_{4}(5x)=3$ es:\medskip\newline\qquad
a) $x=\dfrac{64}{5}$\qquad b) $x=-\dfrac{64}{5}$\qquad c) $x=\dfrac{18}{5}%
$\qquad d) $x=\dfrac{5}{4}$

La soluci\'{o}n de la ecuaci\'{o}n $7^{-2x}=5$ es:\medskip\newline\qquad a)
$x=-\dfrac{1}{2}\dfrac{\ln5}{\ln7}$\qquad b) $x=-\dfrac{1}{2}\dfrac{\ln7}%
{\ln5}$\qquad\qquad c) $x=\dfrac{1}{2}\dfrac{\ln7}{\ln5}$\qquad d)
$x=\dfrac{1}{2}\dfrac{\ln5}{\ln7}$

La soluci\'{o}n de la ecuaci\'{o}n $3^{-4x}=7$ es:\medskip\newline\qquad a)
$x=-\dfrac{1}{4}\dfrac{\ln7}{\ln3}$\qquad b) $x=-\dfrac{1}{4}\dfrac{\ln3}%
{\ln7}$\qquad\qquad c) $x=\dfrac{1}{4}\dfrac{\ln3}{\ln7}$\qquad d)
$x=\dfrac{1}{4}\dfrac{\ln7}{\ln3}$

La soluci\'{o}n de la ecuaci\'{o}n $5^{-2x}=10$ es:\medskip\newline\qquad a)
$x=-\dfrac{1}{2}\dfrac{\ln10}{\ln5}$\qquad b) $x=\dfrac{1}{2}\dfrac{\ln5}%
{\ln10}$\qquad\qquad c) $x=\dfrac{1}{2}\dfrac{\ln10}{\ln5}$\qquad d)
$x=-\dfrac{1}{2}\dfrac{\ln5}{\ln10}$

La soluci\'{o}n de la ecuaci\'{o}n $8^{-3x}=7$ es:\medskip\newline\qquad a)
$x=-\dfrac{1}{3}\dfrac{\ln7}{\ln8}$\qquad b) $x=-\dfrac{1}{3}\dfrac{\ln8}%
{\ln7}$\qquad\qquad c) $x=\dfrac{1}{3}\dfrac{\ln8}{\ln7}$\qquad d)
$x=\dfrac{1}{3}\dfrac{\ln7}{\ln8}$

La soluci\'{o}n de la ecuaci\'{o}n $6^{-5x}=9$ es:\medskip\newline\qquad a)
$x=-\dfrac{1}{5}\dfrac{\ln9}{\ln6}$\qquad b) $x=-\dfrac{1}{5}\dfrac{\ln6}%
{\ln9}$\qquad\qquad c) $x=\dfrac{1}{5}\dfrac{\ln6}{\ln9}$\qquad d)
$x=\dfrac{1}{5}\dfrac{\ln9}{\ln6}$

La soluci\'{o}n de la ecuaci\'{o}n $5^{-2x}=4$ es:\medskip\newline\qquad a)
$x=-\dfrac{1}{2}\dfrac{\ln4}{\ln5}$\qquad b) $x=-\dfrac{1}{2}\dfrac{\ln5}%
{\ln4}$\qquad\qquad c) $x=\dfrac{1}{2}\dfrac{\ln4}{\ln5}$\qquad d)
$x=\dfrac{1}{2}\dfrac{\ln5}{\ln4}$

La soluci\'{o}n de la ecuaci\'{o}n $9^{-6x}=3$ es:\medskip\newline\qquad a)
$x=\dfrac{1}{6}\dfrac{\ln3}{\ln9}$\qquad b) $x=-\dfrac{1}{6}\dfrac{\ln9}{\ln
3}$\qquad\qquad c) $x=\dfrac{1}{6}\dfrac{\ln9}{\ln3}$\qquad d) $x=-\dfrac
{1}{6}\dfrac{\ln3}{\ln9}$

La soluci\'{o}n de la ecuaci\'{o}n $3^{-2x}=4$ es:\medskip\newline\qquad a)
$x=-\dfrac{1}{2}\dfrac{\ln4}{\ln3}$\qquad b) $x=-\dfrac{1}{2}\dfrac{\ln3}%
{\ln4}$\qquad\qquad c) $x=\dfrac{1}{2}\dfrac{\ln4}{\ln3}$\qquad d)
$x=\dfrac{1}{2}\dfrac{\ln3}{\ln4}$

La soluci\'{o}n de la ecuaci\'{o}n $5^{-3x}=6$ es:\medskip\newline\qquad a)
$x=-\dfrac{1}{3}\dfrac{\ln6}{\ln5}$\qquad b) $x=\dfrac{1}{3}\dfrac{\ln5}{\ln
6}$\qquad\qquad c) $x=\dfrac{1}{3}\dfrac{\ln6}{\ln5}$\qquad d) $x=-\dfrac
{1}{3}\dfrac{\ln5}{\ln6}$

La soluci\'{o}n de la ecuaci\'{o}n $10^{-2x}=5$ es:\medskip\newline\qquad a)
$x=-\dfrac{1}{2}\dfrac{\ln5}{\ln10}$\qquad b) $x=-\dfrac{1}{2}\dfrac{\ln
10}{\ln5}$\qquad\qquad c) $x=\dfrac{1}{2}\dfrac{\ln5}{\ln10}$\qquad d)
$x=\dfrac{1}{2}\dfrac{\ln10}{\ln5}$


\end{document}